(function() {

	var debug = false;

	var root = this;

	var EXIF = function(obj) {
		if (obj instanceof EXIF) return obj;
		if (!(this instanceof EXIF)) return new EXIF(obj);
		this.EXIFwrapped = obj;
	};

		if (typeof module !== 'undefined' && module.exports) {
	if (typeof exports !== 'undefined') {
			exports = module.exports = EXIF;
		}
		exports.EXIF = EXIF;
	} else {
		root.EXIF = EXIF;
	}

	var ExifTags = EXIF.Tags = {

		// version tags
		0x9000: "ExifVersion", // EXIF version
		0xA000: "FlashpixVersion", // Flashpix format version

		// colorspace tags
		0xA001: "ColorSpace", // Color space information tag

		// image configuration
		0xA002: "PixelXDimension", // Valid width of meaningful image
		0xA003: "PixelYDimension", // Valid height of meaningful image
		0x9101: "ComponentsConfiguration", // Information about channels
		0x9102: "CompressedBitsPerPixel", // Compressed bits per pixel

		// user information
		0x927C: "MakerNote", // Any desired information written by the manufacturer
		0x9286: "UserComment", // Comments by user

		// related file
		0xA004: "RelatedSoundFile", // Name of related sound file

		// date and time
		0x9003: "DateTimeOriginal", // Date and time when the original image was generated
		0x9004: "DateTimeDigitized", // Date and time when the image was stored digitally
		0x9290: "SubsecTime", // Fractions of seconds for DateTime
		0x9291: "SubsecTimeOriginal", // Fractions of seconds for DateTimeOriginal
		0x9292: "SubsecTimeDigitized", // Fractions of seconds for DateTimeDigitized

		// picture-taking conditions
		0x829A: "ExposureTime", // Exposure time (in seconds)
		0x829D: "FNumber", // F number
		0x8822: "ExposureProgram", // Exposure program
		0x8824: "SpectralSensitivity", // Spectral sensitivity
		0x8827: "ISOSpeedRatings", // ISO speed rating
		0x8828: "OECF", // Optoelectric conversion factor
		0x9201: "ShutterSpeedValue", // Shutter speed
		0x9202: "ApertureValue", // Lens aperture
		0x9203: "BrightnessValue", // Value of brightness
		0x9204: "ExposureBias", // Exposure bias
		0x9205: "MaxApertureValue", // Smallest F number of lens
		0x9206: "SubjectDistance", // Distance to subject in meters
		0x9207: "MeteringMode", // Metering mode
		0x9208: "LightSource", // Kind of light source
		0x9209: "Flash", // Flash status
		0x9214: "SubjectArea", // Location and area of main subject
		0x920A: "FocalLength", // Focal length of the lens in mm
		0xA20B: "FlashEnergy", // Strobe energy in BCPS
		0xA20C: "SpatialFrequencyResponse", //
		0xA20E: "FocalPlaneXResolution", // Number of pixels in width direction per FocalPlaneResolutionUnit
		0xA20F: "FocalPlaneYResolution", // Number of pixels in height direction per FocalPlaneResolutionUnit
		0xA210: "FocalPlaneResolutionUnit", // Unit for measuring FocalPlaneXResolution and FocalPlaneYResolution
		0xA214: "SubjectLocation", // Location of subject in image
		0xA215: "ExposureIndex", // Exposure index selected on camera
		0xA217: "SensingMethod", // Image sensor type
		0xA300: "FileSource", // Image source (3 == DSC)
		0xA301: "SceneType", // Scene type (1 == directly photographed)
		0xA302: "CFAPattern", // Color filter array geometric pattern
		0xA401: "CustomRendered", // Special processing
		0xA402: "ExposureMode", // Exposure mode
		0xA403: "WhiteBalance", // 1 = auto white balance, 2 = manual
		0xA404: "DigitalZoomRation", // Digital zoom ratio
		0xA405: "FocalLengthIn35mmFilm", // Equivalent foacl length assuming 35mm film camera (in mm)
		0xA406: "SceneCaptureType", // Type of scene
		0xA407: "GainControl", // Degree of overall image gain adjustment
		0xA408: "Contrast", // Direction of contrast processing applied by camera
		0xA409: "Saturation", // Direction of saturation processing applied by camera
		0xA40A: "Sharpness", // Direction of sharpness processing applied by camera
		0xA40B: "DeviceSettingDescription", //
		0xA40C: "SubjectDistanceRange", // Distance to subject

		// other tags
		0xA005: "InteroperabilityIFDPointer",
		0xA420: "ImageUniqueID" // Identifier assigned uniquely to each image
	};

	var TiffTags = EXIF.TiffTags = {
		0x0100: "ImageWidth",
		0x0101: "ImageHeight",
		0x8769: "ExifIFDPointer",
		0x8825: "GPSInfoIFDPointer",
		0xA005: "InteroperabilityIFDPointer",
		0x0102: "BitsPerSample",
		0x0103: "Compression",
		0x0106: "PhotometricInterpretation",
		0x0112: "Orientation",
		0x0115: "SamplesPerPixel",
		0x011C: "PlanarConfiguration",
		0x0212: "YCbCrSubSampling",
		0x0213: "YCbCrPositioning",
		0x011A: "XResolution",
		0x011B: "YResolution",
		0x0128: "ResolutionUnit",
		0x0111: "StripOffsets",
		0x0116: "RowsPerStrip",
		0x0117: "StripByteCounts",
		0x0201: "JPEGInterchangeFormat",
		0x0202: "JPEGInterchangeFormatLength",
		0x012D: "TransferFunction",
		0x013E: "WhitePoint",
		0x013F: "PrimaryChromaticities",
		0x0211: "YCbCrCoefficients",
		0x0214: "ReferenceBlackWhite",
		0x0132: "DateTime",
		0x010E: "ImageDescription",
		0x010F: "Make",
		0x0110: "Model",
		0x0131: "Software",
		0x013B: "Artist",
		0x8298: "Copyright"
	};

	var GPSTags = EXIF.GPSTags = {
		0x0000: "GPSVersionID",
		0x0001: "GPSLatitudeRef",
		0x0002: "GPSLatitude",
		0x0003: "GPSLongitudeRef",
		0x0004: "GPSLongitude",
		0x0005: "GPSAltitudeRef",
		0x0006: "GPSAltitude",
		0x0007: "GPSTimeStamp",
		0x0008: "GPSSatellites",
		0x0009: "GPSStatus",
		0x000A: "GPSMeasureMode",
		0x000B: "GPSDOP",
		0x000C: "GPSSpeedRef",
		0x000D: "GPSSpeed",
		0x000E: "GPSTrackRef",
		0x000F: "GPSTrack",
		0x0010: "GPSImgDirectionRef",
		0x0011: "GPSImgDirection",
		0x0012: "GPSMapDatum",
		0x0013: "GPSDestLatitudeRef",
		0x0014: "GPSDestLatitude",
		0x0015: "GPSDestLongitudeRef",
		0x0016: "GPSDestLongitude",
		0x0017: "GPSDestBearingRef",
		0x0018: "GPSDestBearing",
		0x0019: "GPSDestDistanceRef",
		0x001A: "GPSDestDistance",
		0x001B: "GPSProcessingMethod",
		0x001C: "GPSAreaInformation",
		0x001D: "GPSDateStamp",
		0x001E: "GPSDifferential"
	};

	var StringValues = EXIF.StringValues = {
		ExposureProgram: {
			0: "Not defined",
			1: "Manual",
			2: "Normal program",
			3: "Aperture priority",
			4: "Shutter priority",
			5: "Creative program",
			6: "Action program",
			7: "Portrait mode",
			8: "Landscape mode"
		},
		MeteringMode: {
			0: "Unknown",
			1: "Average",
			2: "CenterWeightedAverage",
			3: "Spot",
			4: "MultiSpot",
			5: "Pattern",
			6: "Partial",
			255: "Other"
		},
		LightSource: {
			0: "Unknown",
			1: "Daylight",
			2: "Fluorescent",
			3: "Tungsten (incandescent light)",
			4: "Flash",
			9: "Fine weather",
			10: "Cloudy weather",
			11: "Shade",
			12: "Daylight fluorescent (D 5700 - 7100K)",
			13: "Day white fluorescent (N 4600 - 5400K)",
			14: "Cool white fluorescent (W 3900 - 4500K)",
			15: "White fluorescent (WW 3200 - 3700K)",
			17: "Standard light A",
			18: "Standard light B",
			19: "Standard light C",
			20: "D55",
			21: "D65",
			22: "D75",
			23: "D50",
			24: "ISO studio tungsten",
			255: "Other"
		},
		Flash: {
			0x0000: "Flash did not fire",
			0x0001: "Flash fired",
			0x0005: "Strobe return light not detected",
			0x0007: "Strobe return light detected",
			0x0009: "Flash fired, compulsory flash mode",
			0x000D: "Flash fired, compulsory flash mode, return light not detected",
			0x000F: "Flash fired, compulsory flash mode, return light detected",
			0x0010: "Flash did not fire, compulsory flash mode",
			0x0018: "Flash did not fire, auto mode",
			0x0019: "Flash fired, auto mode",
			0x001D: "Flash fired, auto mode, return light not detected",
			0x001F: "Flash fired, auto mode, return light detected",
			0x0020: "No flash function",
			0x0041: "Flash fired, red-eye reduction mode",
			0x0045: "Flash fired, red-eye reduction mode, return light not detected",
			0x0047: "Flash fired, red-eye reduction mode, return light detected",
			0x0049: "Flash fired, compulsory flash mode, red-eye reduction mode",
			0x004D: "Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected",
			0x004F: "Flash fired, compulsory flash mode, red-eye reduction mode, return light detected",
			0x0059: "Flash fired, auto mode, red-eye reduction mode",
			0x005D: "Flash fired, auto mode, return light not detected, red-eye reduction mode",
			0x005F: "Flash fired, auto mode, return light detected, red-eye reduction mode"
		},
		SensingMethod: {
			1: "Not defined",
			2: "One-chip color area sensor",
			3: "Two-chip color area sensor",
			4: "Three-chip color area sensor",
			5: "Color sequential area sensor",
			7: "Trilinear sensor",
			8: "Color sequential linear sensor"
		},
		SceneCaptureType: {
			0: "Standard",
			1: "Landscape",
			2: "Portrait",
			3: "Night scene"
		},
		SceneType: {
			1: "Directly photographed"
		},
		CustomRendered: {
			0: "Normal process",
			1: "Custom process"
		},
		WhiteBalance: {
			0: "Auto white balance",
			1: "Manual white balance"
		},
		GainControl: {
			0: "None",
			1: "Low gain up",
			2: "High gain up",
			3: "Low gain down",
			4: "High gain down"
		},
		Contrast: {
			0: "Normal",
			1: "Soft",
			2: "Hard"
		},
		Saturation: {
			0: "Normal",
			1: "Low saturation",
			2: "High saturation"
		},
		Sharpness: {
			0: "Normal",
			1: "Soft",
			2: "Hard"
		},
		SubjectDistanceRange: {
			0: "Unknown",
			1: "Macro",
			2: "Close view",
			3: "Distant view"
		},
		FileSource: {
			3: "DSC"
		},

		Components: {
			0: "",
			1: "Y",
			2: "Cb",
			3: "Cr",
			4: "R",
			5: "G",
			6: "B"
		}
	};

	function addEvent(element, event, handler) {
		if (element.addEventListener) {
			element.addEventListener(event, handler, false);
		} else if (element.attachEvent) {
			element.attachEvent("on" + event, handler);
		}
	}

	function imageHasData(img) {
		return !!(img.exifdata);
	}


	function base64ToArrayBuffer(base64, contentType) {
		contentType = contentType || base64.match(/^data\:([^\;]+)\;base64,/mi)[1] ||
		''; // e.g. 'data:image/jpeg;base64,...' => 'image/jpeg'
		base64 = base64.replace(/^data\:([^\;]+)\;base64,/gmi, '');
		var binary = atob(base64);
		var len = binary.length;
		var buffer = new ArrayBuffer(len);
		var view = new Uint8Array(buffer);
		for (var i = 0; i < len; i++) {
			view[i] = binary.charCodeAt(i);
		}
		return buffer;
	}

	function objectURLToBlob(url, callback) {
		var http = new XMLHttpRequest();
		http.open("GET", url, true);
		http.responseType = "blob";
		http.onload = function(e) {
			if (this.status == 200 || this.status === 0) {
				callback(this.response);
			}
		};
		http.send();
	}

	function getImageData(img, callback) {
		function handleBinaryFile(binFile) {
			var data = findEXIFinJPEG(binFile);
			var iptcdata = findIPTCinJPEG(binFile);
			img.exifdata = data || {};
			img.iptcdata = iptcdata || {};
			if (callback) {
				callback.call(img);
			}
		}

		if (img.src) {
			if (/^data\:/i.test(img.src)) { // Data URI
				var arrayBuffer = base64ToArrayBuffer(img.src);
				handleBinaryFile(arrayBuffer);

			} else if (/^blob\:/i.test(img.src)) { // Object URL
				var fileReader = new FileReader();
				fileReader.onload = function(e) {
					handleBinaryFile(e.target.result);
				};
				objectURLToBlob(img.src, function(blob) {
					fileReader.readAsArrayBuffer(blob);
				});
			} else {
				var http = new XMLHttpRequest();
				http.onload = function() {
					if (this.status == 200 || this.status === 0) {
						handleBinaryFile(http.response);
					} else {
						throw "Could not load image";
					}
					http = null;
				};
				http.open("GET", img.src, true);
				http.responseType = "arraybuffer";
				http.send(null);
			}
		} else if (window.FileReader && (img instanceof window.Blob || img instanceof window.File)) {
			var fileReader = new FileReader();
			fileReader.onload = function(e) {
				if (debug) console.log("Got file of length " + e.target.result.byteLength);
				handleBinaryFile(e.target.result);
			};

			fileReader.readAsArrayBuffer(img);
		}
	}

	function findEXIFinJPEG(file) {
		var dataView = new DataView(file);

		if (debug) console.log("Got file of length " + file.byteLength);
		if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
			if (debug) console.log("Not a valid JPEG");
			return false; // not a valid jpeg
		}

		var offset = 2,
			length = file.byteLength,
			marker;

		while (offset < length) {
			if (dataView.getUint8(offset) != 0xFF) {
				if (debug) console.log("Not a valid marker at offset " + offset + ", found: " + dataView.getUint8(
					offset));
				return false; // not a valid marker, something is wrong
			}

			marker = dataView.getUint8(offset + 1);
			if (debug) console.log(marker);

			// we could implement handling for other markers here,
			// but we're only looking for 0xFFE1 for EXIF data

			if (marker == 225) {
				if (debug) console.log("Found 0xFFE1 marker");

				return readEXIFData(dataView, offset + 4, dataView.getUint16(offset + 2) - 2);

				// offset += 2 + file.getShortAt(offset+2, true);

			} else {
				offset += 2 + dataView.getUint16(offset + 2);
			}

		}

	}

	function findIPTCinJPEG(file) {
		var dataView = new DataView(file);

		if (debug) console.log("Got file of length " + file.byteLength);
		if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
			if (debug) console.log("Not a valid JPEG");
			return false; // not a valid jpeg
		}

		var offset = 2,
			length = file.byteLength;


		var isFieldSegmentStart = function(dataView, offset) {
			return (
				dataView.getUint8(offset) === 0x38 &&
				dataView.getUint8(offset + 1) === 0x42 &&
				dataView.getUint8(offset + 2) === 0x49 &&
				dataView.getUint8(offset + 3) === 0x4D &&
				dataView.getUint8(offset + 4) === 0x04 &&
				dataView.getUint8(offset + 5) === 0x04
			);
		};

		while (offset < length) {

			if (isFieldSegmentStart(dataView, offset)) {

				// Get the length of the name header (which is padded to an even number of bytes)
				var nameHeaderLength = dataView.getUint8(offset + 7);
				if (nameHeaderLength % 2 !== 0) nameHeaderLength += 1;
				// Check for pre photoshop 6 format
				if (nameHeaderLength === 0) {
					// Always 4
					nameHeaderLength = 4;
				}

				var startOffset = offset + 8 + nameHeaderLength;
				var sectionLength = dataView.getUint16(offset + 6 + nameHeaderLength);

				return readIPTCData(file, startOffset, sectionLength);

				break;

			}


			// Not the marker, continue searching
			offset++;

		}

	}
	var IptcFieldMap = {
		0x78: 'caption',
		0x6E: 'credit',
		0x19: 'keywords',
		0x37: 'dateCreated',
		0x50: 'byline',
		0x55: 'bylineTitle',
		0x7A: 'captionWriter',
		0x69: 'headline',
		0x74: 'copyright',
		0x0F: 'category'
	};

	function readIPTCData(file, startOffset, sectionLength) {
		var dataView = new DataView(file);
		var data = {};
		var fieldValue, fieldName, dataSize, segmentType, segmentSize;
		var segmentStartPos = startOffset;
		while (segmentStartPos < startOffset + sectionLength) {
			if (dataView.getUint8(segmentStartPos) === 0x1C && dataView.getUint8(segmentStartPos + 1) === 0x02) {
				segmentType = dataView.getUint8(segmentStartPos + 2);
				if (segmentType in IptcFieldMap) {
					dataSize = dataView.getInt16(segmentStartPos + 3);
					segmentSize = dataSize + 5;
					fieldName = IptcFieldMap[segmentType];
					fieldValue = getStringFromDB(dataView, segmentStartPos + 5, dataSize);
					// Check if we already stored a value with this name
					if (data.hasOwnProperty(fieldName)) {
						// Value already stored with this name, create multivalue field
						if (data[fieldName] instanceof Array) {
							data[fieldName].push(fieldValue);
						} else {
							data[fieldName] = [data[fieldName], fieldValue];
						}
					} else {
						data[fieldName] = fieldValue;
					}
				}

			}
			segmentStartPos++;
		}
		return data;
	}



	function readTags(file, tiffStart, dirStart, strings, bigEnd) {
		var entries = file.getUint16(dirStart, !bigEnd),
			tags = {},
			entryOffset, tag,
			i;

		for (i = 0; i < entries; i++) {
			entryOffset = dirStart + i * 12 + 2;
			tag = strings[file.getUint16(entryOffset, !bigEnd)];
			if (!tag && debug) console.log("Unknown tag: " + file.getUint16(entryOffset, !bigEnd));
			tags[tag] = readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd);
		}
		return tags;
	}


	function readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd) {
		var type = file.getUint16(entryOffset + 2, !bigEnd),
			numValues = file.getUint32(entryOffset + 4, !bigEnd),
			valueOffset = file.getUint32(entryOffset + 8, !bigEnd) + tiffStart,
			offset,
			vals, val, n,
			numerator, denominator;

		switch (type) {
			case 1: // byte, 8-bit unsigned int
			case 7: // undefined, 8-bit byte, value depending on field
				if (numValues == 1) {
					return file.getUint8(entryOffset + 8, !bigEnd);
				} else {
					offset = numValues > 4 ? valueOffset : (entryOffset + 8);
					vals = [];
					for (n = 0; n < numValues; n++) {
						vals[n] = file.getUint8(offset + n);
					}
					return vals;
				}

				case 2: // ascii, 8-bit byte
					offset = numValues > 4 ? valueOffset : (entryOffset + 8);
					return getStringFromDB(file, offset, numValues - 1);

				case 3: // short, 16 bit int
					if (numValues == 1) {
						return file.getUint16(entryOffset + 8, !bigEnd);
					} else {
						offset = numValues > 2 ? valueOffset : (entryOffset + 8);
						vals = [];
						for (n = 0; n < numValues; n++) {
							vals[n] = file.getUint16(offset + 2 * n, !bigEnd);
						}
						return vals;
					}

					case 4: // long, 32 bit int
						if (numValues == 1) {
							return file.getUint32(entryOffset + 8, !bigEnd);
						} else {
							vals = [];
							for (n = 0; n < numValues; n++) {
								vals[n] = file.getUint32(valueOffset + 4 * n, !bigEnd);
							}
							return vals;
						}

						case 5: // rational = two long values, first is numerator, second is denominator
							if (numValues == 1) {
								numerator = file.getUint32(valueOffset, !bigEnd);
								denominator = file.getUint32(valueOffset + 4, !bigEnd);
								val = new Number(numerator / denominator);
								val.numerator = numerator;
								val.denominator = denominator;
								return val;
							} else {
								vals = [];
								for (n = 0; n < numValues; n++) {
									numerator = file.getUint32(valueOffset + 8 * n, !bigEnd);
									denominator = file.getUint32(valueOffset + 4 + 8 * n, !bigEnd);
									vals[n] = new Number(numerator / denominator);
									vals[n].numerator = numerator;
									vals[n].denominator = denominator;
								}
								return vals;
							}

							case 9: // slong, 32 bit signed int
								if (numValues == 1) {
									return file.getInt32(entryOffset + 8, !bigEnd);
								} else {
									vals = [];
									for (n = 0; n < numValues; n++) {
										vals[n] = file.getInt32(valueOffset + 4 * n, !bigEnd);
									}
									return vals;
								}

								case 10: // signed rational, two slongs, first is numerator, second is denominator
									if (numValues == 1) {
										return file.getInt32(valueOffset, !bigEnd) / file.getInt32(valueOffset + 4, !
											bigEnd);
									} else {
										vals = [];
										for (n = 0; n < numValues; n++) {
											vals[n] = file.getInt32(valueOffset + 8 * n, !bigEnd) / file.getInt32(
												valueOffset + 4 + 8 * n, !bigEnd);
										}
										return vals;
									}
		}
	}

	function getStringFromDB(buffer, start, length) {
		var outstr = "";
		for (n = start; n < start + length; n++) {
			outstr += String.fromCharCode(buffer.getUint8(n));
		}
		return outstr;
	}

	function readEXIFData(file, start) {
		if (getStringFromDB(file, start, 4) != "Exif") {
			if (debug) console.log("Not valid EXIF data! " + getStringFromDB(file, start, 4));
			return false;
		}

		var bigEnd,
			tags, tag,
			exifData, gpsData,
			tiffOffset = start + 6;

		// test for TIFF validity and endianness
		if (file.getUint16(tiffOffset) == 0x4949) {
			bigEnd = false;
		} else if (file.getUint16(tiffOffset) == 0x4D4D) {
			bigEnd = true;
		} else {
			if (debug) console.log("Not valid TIFF data! (no 0x4949 or 0x4D4D)");
			return false;
		}

		if (file.getUint16(tiffOffset + 2, !bigEnd) != 0x002A) {
			if (debug) console.log("Not valid TIFF data! (no 0x002A)");
			return false;
		}

		var firstIFDOffset = file.getUint32(tiffOffset + 4, !bigEnd);

		if (firstIFDOffset < 0x00000008) {
			if (debug) console.log("Not valid TIFF data! (First offset less than 8)", file.getUint32(tiffOffset + 4, !
				bigEnd));
			return false;
		}

		tags = readTags(file, tiffOffset, tiffOffset + firstIFDOffset, TiffTags, bigEnd);

		if (tags.ExifIFDPointer) {
			exifData = readTags(file, tiffOffset, tiffOffset + tags.ExifIFDPointer, ExifTags, bigEnd);
			for (tag in exifData) {
				switch (tag) {
					case "LightSource":
					case "Flash":
					case "MeteringMode":
					case "ExposureProgram":
					case "SensingMethod":
					case "SceneCaptureType":
					case "SceneType":
					case "CustomRendered":
					case "WhiteBalance":
					case "GainControl":
					case "Contrast":
					case "Saturation":
					case "Sharpness":
					case "SubjectDistanceRange":
					case "FileSource":
						exifData[tag] = StringValues[tag][exifData[tag]];
						break;

					case "ExifVersion":
					case "FlashpixVersion":
						exifData[tag] = String.fromCharCode(exifData[tag][0], exifData[tag][1], exifData[tag][2],
							exifData[tag][3]);
						break;

					case "ComponentsConfiguration":
						exifData[tag] =
							StringValues.Components[exifData[tag][0]] +
							StringValues.Components[exifData[tag][1]] +
							StringValues.Components[exifData[tag][2]] +
							StringValues.Components[exifData[tag][3]];
						break;
				}
				tags[tag] = exifData[tag];
			}
		}

		if (tags.GPSInfoIFDPointer) {
			gpsData = readTags(file, tiffOffset, tiffOffset + tags.GPSInfoIFDPointer, GPSTags, bigEnd);
			for (tag in gpsData) {
				switch (tag) {
					case "GPSVersionID":
						gpsData[tag] = gpsData[tag][0] +
							"." + gpsData[tag][1] +
							"." + gpsData[tag][2] +
							"." + gpsData[tag][3];
						break;
				}
				tags[tag] = gpsData[tag];
			}
		}

		return tags;
	}

	EXIF.getData = function(img, callback) {
		if ((img instanceof Image || img instanceof HTMLImageElement) && !img.complete) return false;

		if (!imageHasData(img)) {
			getImageData(img, callback);
		} else {
			if (callback) {
				callback.call(img);
			}
		}
		return true;
	}

	EXIF.getTag = function(img, tag) {
		if (!imageHasData(img)) return;
		return img.exifdata[tag];
	}

	EXIF.getAllTags = function(img) {
		if (!imageHasData(img)) return {};
		var a,
			data = img.exifdata,
			tags = {};
		for (a in data) {
			if (data.hasOwnProperty(a)) {
				tags[a] = data[a];
			}
		}
		return tags;
	}

	EXIF.pretty = function(img) {
		if (!imageHasData(img)) return "";
		var a,
			data = img.exifdata,
			strPretty = "";
		for (a in data) {
			if (data.hasOwnProperty(a)) {
				if (typeof data[a] == "object") {
					if (data[a] instanceof Number) {
						strPretty += a + " : " + data[a] + " [" + data[a].numerator + "/" + data[a].denominator +
							"]\r\n";
					} else {
						strPretty += a + " : [" + data[a].length + " values]\r\n";
					}
				} else {
					strPretty += a + " : " + data[a] + "\r\n";
				}
			}
		}
		return strPretty;
	}

	EXIF.readFromBinaryFile = function(file) {
		return findEXIFinJPEG(file);
	}

	if (typeof define === 'function' && define.amd) {
		define('exif-js', [], function() {
			return EXIF;
		});
	}
}.call(this));
